18528419

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1$

素因数の和:132

約数の個数: 48

約数和(自身を含む): 25855200

約数和(自身を除く): 7326781

約数列:

[1, 7, 13, 17, 29, 49, 59, 91, 119, 203, 221, 377, 413, 493, 637, 767, 833, 1003, 1421, 1547, 1711, 2639, 2891, 3451, 5369, 6409, 7021, 10829, 11977, 13039, 18473, 22243, 24157, 29087, 37583, 44863, 49147, 83839, 91273, 155701, 203609, 314041, 378131, 638911, 1089907, 1425263, 2646917, 18528419]

約数ペア:

[(1, 18528419), (7, 2646917), (13, 1425263), (17, 1089907), (29, 638911), (49, 378131), (59, 314041), (91, 203609), (119, 155701), (203, 91273), (221, 83839), (377, 49147), (413, 44863), (493, 37583), (637, 29087), (767, 24157), (833, 22243), (1003, 18473), (1421, 13039), (1547, 11977), (1711, 10829), (2639, 7021), (2891, 6409), (3451, 5369)]